1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arisa [49]
2 years ago
7

*Spam answers will not be tolerated*

Mathematics
1 answer:
V125BC [204]2 years ago
8 0

Step-by-step explanation:

C = -11

A = -13

V = 9

E = -9

If you are adding them: -24

Hope this helps!

You might be interested in
PLEASE HELP WILL GIVE BRAINLYEST AND 10 POINTS!!!
Alina [70]

Answer:

D

Step-by-step explanation:

6 0
3 years ago
Newton's law of cooling is:
Mnenie [13.5K]

Answer:

t = \frac{ln(\frac{21}{59})}{-0.15}=6.887 hr

So it would takes approximately 6.9 hours to reach 32 F.

Step-by-step explanation:

For this case we have the following differential equationÑ

\frac{du}{dt}= -k (u-T)

We can reorder the expression like this:

\frac{du}{u-T} = -k dt

We can use the substitution w = u-T and dw =du so then we have:

\frac{dw}{w} =-k dt

IF we integrate both sides we got:

ln |w| = -kt +C

If we apply exponential in both sides we got:

w = e^{-kt} *e^c

And if we replace w = u-T we got:

u(t)= T + C_1 e^{-kt}

We can also express the solution in the following terms:

u(t) = (T_i -T_{amb}) e^{kt} +T_{amb}

For this case we know that k =-0.15 hr since w ehave a cooloing, T_{i}= 70 F, T_{amb}=11F, we have this model:

u(t) = (70-11) e^{-0.15t} +11

And if we want that the temperature would be 32F we can solve for t like this:

32 = 59 e^{-0.15 t} +11

21=59 e^{-0.15 t}

\frac{21}{59} = e^{-0.15 t}

If we apply natural logs on both sides we got:

ln (\frac{21}{59}) =-0.15 t

t = \frac{ln(\frac{21}{59})}{-0.15}=6.887 hr

So it would takes approximately 6.9 hours to reach 32 F.

7 0
3 years ago
Which of the following equations represents a quadratic relation?
iVinArrow [24]

Answer:

y=2x^2+1

Step-by-step explanation:

a quadratic equation has a x^2 term

4 0
2 years ago
Which expression gives the prime<br> factorization of 80?<br> I need help please..
Alja [10]
The correct answer is actually choice D.
8 0
3 years ago
Marcus invested $2000 in a bank account earning simple interest. The interest, I, he has after t years at an interest rate r is
laila [671]

Answer:

4%

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • At a bake sale for every 8 cupcakes sold you earn 5.00. If u made 45 how many cupcakes did you sell?
    7·1 answer
  • How would you work out this equation? <br> 4x+3y=-23 <br> -2x-3y=25
    6·1 answer
  • A lumber company is making doors that are 2058.02058.0 millimeters tall. If the doors are too long they must be trimmed, and if
    5·1 answer
  • Please help me with this math problem
    11·1 answer
  • Ben's making bow ties. How many 1/2 yard-long bow ties can he make if he has 18 feet of fabric
    13·1 answer
  • The members of the basketball team ordered 5 tuna sandwiches at $3.99 each, 5 fish tacos at $2.75 each, 3 salads at $2.70 each,
    11·1 answer
  • HELP!!! WHATS THE ANSWER PLS HELP-
    7·1 answer
  • 8 minus the quantity b divided by 6
    6·1 answer
  • PLEASE HELP ME OUT !!!!
    9·1 answer
  • Simplify 50/110 please help me I don’t know
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!